Operation Teardrop was a United States Navy operation of World War II conducted during April and May 1945 to sink German U-boats approaching the United States East Coast that were believed to be armed with V-1 flying bombs. Germany had threatened in propaganda to attack New York with V-1 flying bombs and V-2 missiles.

Operation Teardrop was a United States Navy operation of World War II conducted during April and May 1945 to sink German U-boats approaching the United States East Coast that were believed to be armed with V-1 flying bombs. Germany had threatened in propaganda to attack New York with V-1 flying bombs and V-2 missiles. After the war the Allies determined that the submarines had not been carrying either.Operation Teardrop was planned during late 1944 in response to intelligence reports which indicated that Germany was preparing a force of missile-armed submarines. Two large U.S. Navy anti-submarine warfare task forces were set up. The plan was executed in April 1945 after several Type IX submarines put to sea from Norway bound for North America. While severe weather conditions in the North Atlantic Ocean greatly reduced the effectiveness of the four U.S. Navy escort carriers involved, long patrol lines of destroyer escorts detected and engaged most of the German submarines. Aircraft of the Royal Canadian Air Force supported this effort. Five of the seven submarines in the group stationed off the USA were sunk, four with their entire crews. 33 U-546 crew members were captured, and specialists among them abusively interrogated. One destroyer escort was sunk, with the loss of most of her crew. The war ended shortly afterwards and all surviving U-boats surrendered; interrogation of their crews found that missile launching equipment was not fitted.

Operation Teardrop was a United States Navy operation of World War II conducted during April and May 1945 to sink German U-boats approaching the United States East Coast that were believed to be armed with V-1 flying bombs. Germany had threatened in propaganda to attack New York with V-1 flying bombs and V-2 missiles.